JEOL JSPM-5200 Instructions Manual page 388

６ ANALYSIS OPERATION
Determines the value of threshold when expressing an image by a binary digitized
value.
Moving the threshold value slider changes the threshold value for binary value
digitizing processing and the binary digitized value of the particle analysis window.
Determine the threshold value while checking with the original image.
The threshold value can be changed by moving the bar chart. Select OK to deter-
mine it.
• Connection decision
Changes the connecting conditions for deciding as one particle.
Clicking the radio button changes the setting.
The pixels connected to a point of interest are judged to be the same particle.
• Analyse
Performs detecting processing and analysis processing to detect particles according
to the setting of threshold value level and the setting of connection legend.
If the threshold value is changed after analysis is conducted, it is necessary to
conduct analysis over again, making it necessary to click analysis for a second time.
• Erode
Excludes one pixel layer from the area around particles.
This function becomes effective after analyze processing is performed.
6-58
0
(Black)
Threshold
Threshold ２
'4'
■ show the pixels to be taken away.
Pixels in this range are
displayed in white.
Pixels in these ranges
are displayed in
black.
Brightness
255
(White)
'8'
Erode
TMPM5200-2